His most famous works include the Vampire Hunter D series, Darkside Blues and Wicked City.
He attended Aoyama Gakuin University and was trained as a writer by famed author Kazuo Koike.
The series takes place in a world where Shinjuku has been turned into a city of demons and monsters, and follows a young man named Kyoya Izayoi, user of the mystical art of Nempo, who must discover how the disaster relates to his own family.
A series of young adult fiction novels (also called the Alien Series for use of "alien" in each title), the story follows a seemingly ordinary high schooler named Dai Yagashira, who journeys around the world collecting rare and supernatural treasures.
Invader Summer and A Wind Named Amnesia were republished together in one volume in August 2005, with illustrations by Eiji Kaneda.